Greenwich Hospital

Yale Pediatric Gastroenterology at Greenwich Hospital extends the expertise of academic specialists to Fairfield County, making access to cutting edge care easier and more convenient to parents and children living in Fairfield County and contiguous New York counties. It is the only pediatric gastroenterology practice in Fairfield County where office visits, diagnostic and therapeutic procedures including endoscopies are provided in one location.

General Info

Dr. Anthony Porto, Director of Pediatric Gastroenterology at Greenwich Hospital and Assistant Professor of Pediatrics at Yale University, is a board-certified in pediatrics and pediatric gastroenterology, with a specific interest in obesity, high cholesterol and fatty liver disease. He provides care to children from birth through 18 years old, for acute and chronic conditions, with a variety of gastrointestinal and nutritional problems, including:

  • Abdominal pain
  • Celiac Disease
  • Cholestasis/Jaundice
  • Constipation 
  • Failure to thrive
  • Feeding problems
  • Food allergies
  • Gastroesophageal Reflux Disease (GERD)     
  • Gastrostomy tubes and enteral nutrition
  • Hepatitis
  • Helicobacter pylori infection
  • Inflammatory Bowel Disease
  • Lactose intolerance
  • Pancreatitis
  • Peptic ulcer disease
  • Polyps
  • Obesity
  • Vomiting (chronic, recurrent)

The program offers coordinated patient care, working closely with general pediatricians and pediatric subspecialists, pediatric surgeons, pathologists, radiologists, speech therapists and nutritionists.


  • Radiologic studies
    • Abdominal Ultrasound
    • Barium Swallow
    • CT scans/MRI
    • Upper GI series with and without small bowel follow through
  • Endoscopic studies
    • Upper endoscopy with biopsy
    • Lower endoscopy/Colonoscopy
      • With biopsy
      • Removal of polyps
  • pH probe monitoring
  • Lactose Breath Test
  • Urea (H. Pylori)

Location and Hours

Office Location and Hours

Our office is located on the second floor in the Pediatric Center. Office hours are held on Tuesdays and Fridays from 8-4pm. Urgent appointments are available on most Wednesdays afternoons. To schedule an appointment, please call 203-863-4452.
If you would like to refer a patient to our office, please call us at 203-863-4452 or fax the attached referral form to us. Referrals are reviewed within 1-2 business days.

Nighttime coverage

A team of pediatric gastroenterologists provide overnight coverage for emergency gastrointestinal problems such as removal of foreign bodies, esophageal food impactions and ingestions of caustic substances.

Special Programs

In addition to regular office hours, the following special multidisciplinary programs are offered on a monthly basis.

Dyslipidemia/Fatty Liver Program

More children are diagnosed with high cholesterol and fatty liver disease due to the increase in childhood obesity and increase in awareness of the presence of familial hyperlipidemia.
On a monthly basis, patients meet with Dr. Porto, who specializes in the evaluation and treatment of dyslipidemias, and a nutritionist who helps to coordinate individualized care and family education. Dr. Porto works closely with subspecialists in pediatric endocrinology to provide care in insulin resistance and pre-diabetic states.

Inflammatory Bowel Disease Program

Crohn’s disease and ulcerative colitis are chronic inflammatory conditions of the gastrointestinal tract. Patients and family meet a board-certified pediatric gastroenterologist who evaluate patients, educate families and closely follow each patient to monitor for the recurrence of symptoms and response to treatment plans. We work closely with nutritionists and pediatric surgeons to provide the well rounded care.

Caring for a child with inflammatory bowel disease does not end with remission of the disease. Patients are closely monitored for common nutritional deficiencies, extra-intestinal manifestations of the disease and side effects from medications.

Infliximab (Remicade) infusions are done on the pediatric floor of Greenwich Hospital, with experienced pediatric nursing staff, under the direction of a Yale pediatric gastroenterologist.  Young adults easily transition to the adult IBD program for a lifetime of care.

Educational Lectures

Dr. Porto gives regular evening lectures for parents about common gastrointestinal complaints such as abdominal pain. Please call Dr. Porto’s office at 203-863-4452 to find out about future educational programs and to suggest possible topics. Dr. Porto would also be happy to speak at school PTA meetings, after-school programs and community centers in Fairfield and Westchester Counties.

Greenwich Hospital
5 Perryridge Road
Greenwich, CT  06830